Unique click-through rate (CTR) refers to the percentage of unique individuals who click on a specific link or advertisement, out of the total number of unique individuals who view it. This metric is used to measure the effectiveness of a marketing campaign or website in driving engagement and conversions. Unlike regular CTR, which counts all clicks regardless of whether they are from the same person, unique CTR provides a more accurate representation of the actual number of people who are interested in the content or offer being promoted. A high unique CTR indicates that the content is resonating with the target audience and is successfully driving them to take action.